.anchor {
    position: fixed;
    left: 281.5px;
    top: 100px;
}
.anchor li {
    width: 40px;
    height: 45px;
    background: #888;
    text-align: center;
    border-top: 1px solid #fff;
    transition: all .5s;
}
.anchor li:first-child {
    border-top: 0;
}
.anchor li:hover a{
    text-decoration: none;
}
.anchor li.active{
    background: #ed1c24;
}
.anchor li a {
    display: block;
    padding: 5px;
    font-size: 12px;
    color: #fff;
    text-decoration: none;
}